All professionals at Southwest Dermatology maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Cheuk W. Yung, M.D.

(Chicago, Orland Park, Ottawa)

Speciality
Dermatologist

Training
Dr. Yung graduated from the New York University School of Medicine in 1977, and completed his residency in dermatology at the Cinncinatti Medical Center and University of Chicago Hospitals and Clinics in 1981. He is certified by the American Board of Dermatology.

Shirley Jean-Baptiste, M.D.

(Chicago and Orland Park Office)

Speciality
Dermatologist

Training
Dr. Jean-Baptiste graduated from the Northwestern University School of Medicine in 1999, and completed her residency in dermatology at Northwestern University in 2003. She is board certified by the American Board of Dermatology. Her practice interests include advanced therapy for psoriasis, eczema, and skin cancer surgery, including Mohs.

Frank A. Tobin, M.D.

(New Lenox and Orland Park Office)

Speciality
Dermatologist

Training
Dr. Tobin graduated from Loyola University - Stritch School of Medicine in 2001, and completed his residency in dermatology at the University of Illinois College of Medicine in 2005. He is board certified by the American Board of Dermatology. Member of the American Society of Mohs Surgery.

John C. Fox, M.D.

(New Lenox)

Speciality
Dermatologist

Training
Dr. Fox graduated from the University of Chicago Pritzker School of Medicine in 2007 and completed his residency training in Dermatology at The University of Chicago Medical Center in 2011. He is board certified by the American Board of Dermatology.

Theresa Longo, M.S.N, D.C.N.P.

(Orland Park Office)

Speciality
Dermatology Certified Nurse Practitioner

Training
Theresa Longo graduated from St. Joseph College of Nursing with a B.S.N. in 1995 and from St. Xavier University with an M.S.N. in 2000. She is board certified by the American College of Nurse Practitioners and the Dermatology Nurse Certification Board.

Judy Valkenburg, PA-C

(Orland Park Office)

Speciality
Certified Physician Assistant

Training
Valkenburg graduated from Northern Illinois University with a B.S. in Nursing in 1987. She graduated from Midwestern University in 2002 with a B.M.S. in Physician Assistant Studies. She is board certified by the National Commission on Certification of Physician Assistants.

Michael Regan PA-C

(Orland Park - New Lenox - Ottawa office)

Training

Michael graduated from Loyola University Chicago with a bachalors degree in Biology in 2006. He went on to earn his master's degree in physician assistant studies from Albany Medical College. He is board certified through the National Commission on Certification of Physician Assistants.

Interests

Megan Rowan PA-C

Orland Park - Chicago - Ottawa

Training

Megan graduated with her bachelor's degree from the University of Iowa in 2012. She completed her Master in Medical Science at Barry University in Miami Florida in 2016. She is board certified by the National Commission on Certification of Physician Assistants.